<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>
<body>
<div id="app">
    <div v-if="number === 1">
        A
    </div>
    <div v-else-if="number === 2">
        B
    </div>
    <div v-else>
        C
    </div>
</div>
</body>
<script src="../../js/vue.js"></script>
<script>
    var vm = new Vue({
        el: '#app',
        data() {
            return {
                number: 1
            }
        }
    })
</script>
</html>
